21413760442 has 8 divisors (see below), whose sum is σ = 32134333536. Its totient is φ = 10702315932.

The previous prime is 21413760391. The next prime is 21413760479. The reversal of 21413760442 is 24406731412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21413760442³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21413760398 and 21413760407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276278 + ... + 2285665.

It is an arithmetic number, because the mean of its divisors is an integer number (4016791692).

Almost surely, 2^21413760442 is an apocalyptic number.

21413760442 is a deficient number, since it is larger than the sum of its proper divisors (10720573094).

21413760442 is a wasteful number, since it uses less digits than its factorization.

21413760442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4564292.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 21413760442 in words is "twenty-one billion, four hundred thirteen million, seven hundred sixty thousand, four hundred forty-two".